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A New Suppression-based Possibilistic Fuzzy c-means Clustering Algorithm 一种新的基于抑制的可能性模糊c均值聚类算法
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-01-03 DOI: 10.4108/eetsis.v10i3.2057
J. Arora, M. Tushir, Shivank Kumar Dadhwal
Possibilistic fuzzy c-means (PFCM) is one of the most widely used clustering algorithm that solves the noise sensitivity problem of Fuzzy c-means (FCM) and coincident clusters problem of possibilistic c-means (PCM). Though PFCM is a highly reliable clustering algorithm but  the efficiency of the algorithm can be further improved by introducing the concept of suppression. Suppression-based algorithms employ the winner and non-winner based suppression technique on the datasets, helping in performing better classification of real-world datasets into clusters. In this paper, we propose a suppression-based possibilistic fuzzy c-means clustering algorithm (SPFCM) for the process of clustering. The paper explores the performance of the proposed methodology based on number of misclassifications for various real datasets and synthetic datasets and it is found to perform better than other clustering techniques in the sequel, i.e., normal as well as suppression-based algorithms. The SPFCM is found to perform more efficiently and converges faster as compared to other clustering techniques.
可能性模糊c-均值(PFCM)是目前应用最广泛的聚类算法之一,它解决了模糊c-均值(FCM)的噪声敏感性问题和可能性c-均值(PCM)的重合聚类问题。虽然PFCM是一种高可靠的聚类算法,但通过引入抑制的概念可以进一步提高算法的效率。基于抑制的算法在数据集上采用基于赢家和非赢家的抑制技术,有助于将现实世界的数据集更好地分类成簇。本文提出了一种基于抑制的可能性模糊c均值聚类算法(SPFCM)。本文探讨了基于各种真实数据集和合成数据集的错误分类数量的所提出方法的性能,并发现它在后续中比其他聚类技术(即基于正常和基于抑制的算法)表现更好。与其他聚类技术相比,SPFCM的执行效率更高,收敛速度更快。
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引用次数: 3
Research on Communication Technology of OPGW Line in Distribution Network under Interference Environment 干扰环境下配电网OPGW线路通信技术研究
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2023-01-03 DOI: 10.4108/eetsis.v10i3.2780
Bo Li, Meiqin Huang, Huanyu Zhang, Mi Lin, Shuyi He, Liming Chen
In optical fiber composite overhead ground wire (OPGW) networks, the current monitoring is mainly through installing electronic sensors on the cable and manually monitoring the video on the cable, where the interference plays an important role in the communication and monitoring based systems. In essence, the interference arises from aggressive frequency reuse, especially in the frequency-limited Internet of Things (IoT) networks. The existence of interference causes a negative effect on the system performance of communication systems and IoT networks including the OPGW networks. Hence, this article investigates the communication technology of OPGW line in distribution network under interference environment, where there is one primary link, one secondary link, and one legitimate monitor listening to the secondary link. The secondary user needs to transmit its message to the secondary receiver under the interference power constrained by the primary node. We firstly define the outage probability of legitimate monitoring based on the data rate, and then analyze the system performance by theoretically deriving a closed-form expression of the outage probability for the OPGW communication under interference environment. Simulation results are finally demonstrated to verify the correctness of the closed-form expression for the OPGW communication under interference environment, and show that the interference has a negative impact on the OPGW communication performance.
在光纤复合架空地线(OPGW)网络中,电流监控主要是通过在电缆上安装电子传感器和人工监控电缆上的视频,其中干扰在基于通信和监控的系统中起着重要作用。从本质上讲,干扰来自积极的频率重用,特别是在频率有限的物联网(IoT)网络中。干扰的存在会对通信系统和包括OPGW网络在内的物联网网络的系统性能产生负面影响。因此,本文研究了配电网中OPGW线路在干扰环境下的通信技术。在干扰环境下,配电网中存在一条主链路,一条从链路,一个合法监视器监听从链路。辅助用户需要在主节点的干扰功率约束下向辅助接收机发送报文。首先定义了基于数据速率的合法监控中断概率,然后从理论上推导了干扰环境下OPGW通信中断概率的封闭表达式,分析了系统性能。仿真结果验证了干扰环境下OPGW通信封闭表达式的正确性,并表明干扰对OPGW通信性能有负面影响。
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引用次数: 1
Design of Intrusion Detection and Prevention Model Using COOT Optimization and Hybrid LSTM-KNN Classifier for MANET 基于COOT优化和混合LSTM-KNN分类器的MANET入侵检测与防御模型设计
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-12-27 DOI: 10.4108/eetsis.v10i3.2574
Madhu G.
INTRODUCTION: MANET is an emerging technology that has gained traction in a variety of applications due to its ability to analyze large amounts of data in a short period of time. Thus, these systems are facing a variety of security vulnerabilities and malware assaults. Therefore, it is essential to design an effective, proactive and accurate Intrusion Detection System (IDS) to mitigate these attacks present in the network. Most previous IDS faced challenges such as low detection accuracy, decreased efficiency in sensing novel forms of attacks, and a high false alarm rate. OBJECTIVES: To mitigate these concerns, the proposed model designed an efficient intrusion detection and prevention model using COOT optimization and a hybrid LSTM-KNN classifier for MANET to improve network security. METHODS: The proposed intrusion detection and prevention approach consist of four phases such as classifying normal node from attack node, predicting different types of attacks, finding the frequency of attack, and intrusion prevention mechanism. The initial phases are done through COOT optimization to find the optimal trust value for identifying attack nodes from normal nodes. In the second stage, a hybrid LSTM-KNN model is introduced for the detection of different kinds of attacks in the network. The third stage performs to classify the occurrence of attacks. RESULTS: The final stage is intended to limit the number of attack nodes present in the system. The proposed method's effectiveness is validated by some metrics, which achieved 96 per cent accuracy, 98 per cent specificity, and 35 seconds of execution time. CONCLUSION: This experimental analysis reveals that the proposed security approach effectively mitigates the malicious attack in MANET.
简介:MANET是一种新兴技术,由于其在短时间内分析大量数据的能力,在各种应用中获得了牵引力。因此,这些系统面临着各种安全漏洞和恶意软件攻击。因此,设计一个有效、主动、准确的入侵检测系统(IDS)来缓解网络中存在的这些攻击是至关重要的。以前的大多数入侵检测系统都面临着检测精度低、检测新型攻击的效率下降以及误报率高等挑战。为了减轻这些担忧,该模型设计了一个有效的入侵检测和防御模型,使用COOT优化和用于MANET的混合LSTM-KNN分类器来提高网络安全性。方法:提出的入侵检测与防御方法包括正常节点与攻击节点的分类、不同攻击类型的预测、攻击频率的发现和入侵防御机制四个阶段。初始阶段通过COOT优化,找到从正常节点中识别攻击节点的最优信任值。第二阶段,引入混合LSTM-KNN模型,用于检测网络中不同类型的攻击。第三阶段对攻击的发生进行分类。结果:最后阶段旨在限制系统中存在的攻击节点的数量。通过一些指标验证了该方法的有效性,该方法的准确率达到96%,特异性达到98%,执行时间为35秒。结论:本实验分析表明,所提出的安全方法有效地减轻了MANET中的恶意攻击。
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引用次数: 0
A Chatbot Intent Classifier for Supporting High School Students 一个支持高中生的聊天机器人意图分类器
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-12-21 DOI: 10.4108/eetsis.v10i2.2948
Suha Khalil Assayed, K. Shaalan, M. Alkhatib
INTRODUCTION: An intent classification is a challenged task in Natural Language Processing (NLP) as we are asking the machine to understand our language by categorizing the users’ requests. As a result, the intent classification plays an essential role in having a chatbot conversation that understand students’ requests. OBJECTIVES: In this study, we developed a novel chatbot called “HSchatbot” for predicting the intent classifications from high school students’ enquiries. Evidently, students in high schools are the most concerned among all students about their future; thus, in this stage they need an instant support in order to prepare them to take the right decision for their career choice. METHODS: The authors in this study used the Multinomial Naive-Bayes and Random Forest classifiers for predicting the students’ enquiries, which in turn improved the performance of the classifiers by using the feature’s extractions. RESULTS: The results show that the random forest classifier performed better than Multinomial Naive-Bayes since the performance of this model is checked by using different metrics like accuracy, precision, recall and F1 score. Moreover, all showed high accuracy scores exceeding 90% in all metrics. However, the accuracy of Multinomial Naive-Bayes classifier performed much better when using CountVectorizers compared to using the TF-IDF. CONCLUSION: In the future work, the results will be analysed and investigated in order to figure out the main factors that affect the performance of Multinomial Naive-Bayes classifier, as well as evaluating the model with using a large corpus of students’ questions and enquiries.
简介:意图分类在自然语言处理(NLP)中是一项具有挑战性的任务,因为我们要求机器通过对用户的请求进行分类来理解我们的语言。因此,意图分类在让聊天机器人进行理解学生请求的对话中起着至关重要的作用。目的:在本研究中,我们开发了一种名为“HSchatbot”的新型聊天机器人,用于从高中生的询问中预测意图分类。显然,中学生是所有学生中最关心他们的未来的;因此,在这个阶段,他们需要一个即时的支持,以便他们为自己的职业选择做出正确的决定。方法:作者在本研究中使用多项朴素贝叶斯和随机森林分类器来预测学生的查询,这反过来又通过使用特征提取来提高分类器的性能。结果:结果表明,随机森林分类器的性能优于多项朴素贝叶斯,因为该模型的性能是通过使用不同的指标,如准确率、精度、召回率和F1分数来检查的。此外,所有患者在所有指标中均显示出超过90%的高准确率得分。然而,与使用TF-IDF相比,使用反矢量器时,多项朴素贝叶斯分类器的准确率要高得多。结论:在未来的工作中,将对结果进行分析和调查,以找出影响多项朴素贝叶斯分类器性能的主要因素,并使用大量学生提问和查询的语料库对模型进行评估。
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引用次数: 4
Framework for Detection of Fraud at Point of Sale on Electronic Commerce sites using Logistic Regression 基于逻辑回归的电子商务网站销售点欺诈检测框架
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-11-23 DOI: 10.4108/eetsis.v10i2.1596
Bunmi Alabi, A. David
Many businesses have been positively impacted by electronic commerce (ecommerce). It has enabled enterprises and consumers transact business digitally and experience diversity as long as the internet is accessible and there is a gadget to surf the internet. Several governments have gradually adopted electronic payment throughout the country. The Nigerian government has also done a lot of prodding toward the adoption of a cashless economy, which includes embracing ecommerce. As ecommerce expands, so does actual and attempted fraud through this channel. According to the Nigerian Central Bank, electronic fraud reached trillions of Naira by 2021. The purpose of this work was to employ logistic regression as a decision-making tool for detecting fraud in e-commerce platforms at either the virtual or physical point of sale. The main contribution of this research is a model developed using logistic regression for detecting fraud at the point of sale on electronic commerce platforms. The accuracy of the result is 97.8 percent. The result of this study will provide key decision makers in ecommerce firms with information on fraud patterns on their ecommerce platforms, this will enable them take quick actions to forestall these fraudulent attempts. Further research should be carried out using data from other developing countries.
许多企业都受到了电子商务的积极影响。它使企业和消费者能够数字化地处理业务,体验多样性,只要互联网是可访问的,有一个小工具可以上网。一些政府已逐步在全国范围内采用电子支付。尼日利亚政府也做了很多推动无现金经济的工作,其中包括拥抱电子商务。随着电子商务的发展,通过这一渠道进行的实际和企图欺诈也在增多。据尼日利亚中央银行称,到2021年,电子欺诈达到数万亿奈拉。这项工作的目的是采用逻辑回归作为决策工具,用于在虚拟或物理销售点检测电子商务平台中的欺诈行为。本研究的主要贡献是利用逻辑回归开发了一个模型,用于检测电子商务平台上销售点的欺诈行为。结果的准确率为97.8%。这项研究的结果将为电子商务公司的关键决策者提供有关其电子商务平台上欺诈模式的信息,这将使他们能够迅速采取行动,防止这些欺诈企图。应当利用其他发展中国家的数据进行进一步的研究。
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引用次数: 1
Two-Way Data Processing Technology for OPGW Line of Distribution Power Communication Networks 配电通信网OPGW线路的双向数据处理技术
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-11-08 DOI: 10.4108/eetsis.v10i1.2575
Xinzhan Liu, Zhengfeng Zhang, Bin Du
Promoted by information technology and scalable information systems, optical fiber composite overhead ground wire (OPGW) can not only improve the use efficiency of power towers, but also give full play to the dual role of communication optical cable and ground wire, due to the advantages of high reliability, excellent mechanical performance and low cost. The effective processing of the data from OPGW can effectively promote the wide application. In this paper, we study the two-way data processing technology for OPGW line of distribution power communication networks, where a single relay node assists the two-way data processing in time-division multiplexing mode. We evaluate the influence of the model parameters on the system data processing performance by investigating the outage probability, whereas the analytical and simulation results are demonstrated to show the effectiveness of two-way data processing for the OPGW communication. The results in this paper provides important reference for the development of OPGW communication and scalable information systems.
在信息技术和可扩展信息系统的推动下,光纤复合架空地线(OPGW)由于可靠性高、机械性能优异、成本低等优点,不仅可以提高电力塔的使用效率,而且可以充分发挥通信光缆和地线的双重作用。对OPGW数据进行有效处理,可以有效地促进OPGW的广泛应用。本文研究了配电通信网OPGW线路的双向数据处理技术,其中单个中继节点在时分复用模式下辅助双向数据处理。我们通过研究中断概率来评估模型参数对系统数据处理性能的影响,而分析和仿真结果证明了OPGW通信双向数据处理的有效性。研究结果为OPGW通信和可扩展信息系统的发展提供了重要参考。
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引用次数: 1
Digital interference signal filtering on laser interface for optical fiber communication 光纤通信中激光接口的数字干扰信号滤波
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-11-08 DOI: 10.4108/eetsis.v10i1.2589
Shenmin Zhang, T. Gadekallu
INTRODUCTION: Fiber laser communication is a communication method that uses laser and fiber medium to realize data transmission and information outputOBJECTIVES: In order to reduce the signal interference of optical fiber communication laser interface and ensure the communication quality of optical fiber network. A filtering method of optical fiber communication laser interface interference signal based on digital filtering technology is designed.METHODS: In this paper, the interface model of optical fiber communication network is firstly constructed, and the interface noise signal is input into the digital filter bank. The digital quadrature filtering method and the least square algorithm are used to separate the denoised signals to reduce the crosstalk between the signals in the channel. In this way, the crosstalk component in the signal can be filtered out, and a better filtering processing effect of the laser interface interference signal can be achieved.RESULTS: The results of peak signal-to-noise ratio are above 25, which effectively filters the interference signal in the signal, and retains the effective signal completely. The intelligibility of optical fiber communication network in signal communication is above 0.94, and the highest value is 0.986. The distortion degree are all below 0.025, and the minimum value is 0.004. The communication bit error rate are all below 0.001, which ensures the communication quality of the network.CONCLUSION: The experimental results show that the signal noise reduction effect of the proposed method is good, which provides a reliable basis for filtering and separating interference signals of optical fiber communication laser interface.
简介:光纤激光通信是利用激光和光纤介质实现数据传输和信息输出的一种通信方式。目的:为了减少光纤通信激光接口的信号干扰,保证光纤网络的通信质量。设计了一种基于数字滤波技术的光纤通信激光接口干扰信号滤波方法。方法:首先建立光纤通信网络的接口模型,并将接口噪声信号输入到数字滤波器组中。采用数字正交滤波和最小二乘算法对去噪信号进行分离,以减小信道中信号间的串扰。这样可以滤除信号中的串扰成分,实现对激光接口干扰信号较好的滤波处理效果。结果:峰值信噪比均在25以上,有效滤除了信号中的干扰信号,并完整保留了有效信号。光纤通信网络在信号通信中的可理解性在0.94以上,最高值为0.986。变形程度均在0.025以下,最小值为0.004。通信误码率均小于0.001,保证了网络的通信质量。结论:实验结果表明,所提方法的信号降噪效果良好,为光纤通信激光接口干扰信号的滤波分离提供了可靠的依据。
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引用次数: 0
Intelligent Wireless Monitoring Technology for 10kV Overhead lines in Smart Grid Networks 智能电网中10kV架空线智能无线监控技术
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-11-08 DOI: 10.4108/eetsis.v10i1.2527
Jiangang Lu, Zhan Shi, Xinzhan Liu
Promoted by the rapid development of information technology, 10kV overhead line has been widely used in the majority of cities, and it is of great significance to monitor the distribution network effectively, in order to ensure the normal operation of the system. Most of traditional distribution network monitoring methods are based on manual work, which causes inconvenience to the distribution network fault location, repair, maintenance and real-time monitoring, and reduces the efficiency of the distribution network emergency repair and the reliability of power supply. Aiming at the automatic monitoring problem of 10kV overhead network, this paper adopts an intelligent wireless monitoring technology, where a monitoring node is employed to monitor the network transmission status through wireless links. We evaluate the system monitoring performance by using the metric of outage probability, depending on the wireless data rate over wireless channels. For the considered system, we derive analytical outage probability, in order to measure the system performance in the whole range of signal-to-noise ratio (SNR). The simulation results are finally presented to verify the analytical expressions on the system monitoring outage probability in this paper.
在信息技术快速发展的推动下,10kV架空线路已在大多数城市得到广泛应用,对配电网进行有效监控,以保证系统的正常运行具有重要意义。传统的配电网监测方法大多以人工为主,给配电网故障定位、抢修、维护和实时监控带来不便,降低了配电网应急抢修的效率和供电的可靠性。针对10kV架空网络的自动监控问题,本文采用智能无线监控技术,通过无线链路,利用监控节点对网络传输状态进行监控。我们根据无线信道上的无线数据速率,使用中断概率度量来评估系统监控性能。对于所考虑的系统,我们导出了分析中断概率,以便在信噪比(SNR)的整个范围内测量系统的性能。最后给出了仿真结果,验证了本文关于系统监控中断概率的解析表达式。
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引用次数: 4
Design of civil aviation security check passenger identification system based on residual convolution network 基于残差卷积网络的民航安检旅客识别系统设计
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-11-03 DOI: 10.4108/eetsis.v10i1.2587
Ning Zhang, Youcheng Liang, Loknath Sai Ambati
INTRODUCTION: A civil aviation security check passenger identification system based on residual convolution network is designed to improve the efficiency of airport passenger security check service.OBJECTIVES: The system uses the basic resource layer to provide communication and configuration services, collects the basic information of passengers, the images of passengers' faces and whole body, and the images of baggage security X-ray machine through the data layer, and stores the collected results in the unstructured database;METHODS: The image processing module of the business service layer calls the data in the database, and takes the STM32F103VBT6 microprocessor as the image processing control chip to complete the image data processing. The person, baggage, X-ray machine image and passenger basic information are associated through the person, baggage and X-ray machine information binding service module, and the association results are uploaded to the person and certificates integration unit of the client application layer.RESULTS: The face recognition module identifies the passenger identity through the residual convolution network with the attention mechanism, and realizes the ReID identification of passengers and baggage and the association of people and baggage through the transmission control unit.CONCLUSION: The experimental results show that the system can accurately identify the identity of civil aviation security passengers, and the identification efficiency of security passengers can reach more than 27 frames per second.
摘要:为提高机场旅客安检服务效率,设计了一种基于残差卷积网络的民航安检旅客识别系统。目的:系统利用基础资源层提供通信和配置服务,通过数据层采集旅客基本信息、旅客面部和全身图像、行李安检x光机图像,并将采集结果存储在非结构化数据库中;业务服务层的图像处理模块调用数据库中的数据,以STM32F103VBT6微处理器作为图像处理控制芯片完成图像数据处理。通过人、行李、x光机信息绑定服务模块对人、行李、x光机图像、旅客基本信息进行关联,并将关联结果上传到客户端应用层的人证集成单元。结果:人脸识别模块通过残差卷积网络结合注意机制对乘客身份进行识别,通过传输控制单元实现乘客与行李的ReID识别以及人与行李的关联。结论:实验结果表明,该系统能够准确识别民航安检旅客身份,安检旅客识别效率可达到27帧/秒以上。
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引用次数: 0
Precise Recommendation Algorithm for Online Sports Video Teaching Resources 在线体育视频教学资源的精准推荐算法
IF 1.3 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS Pub Date : 2022-10-26 DOI: 10.4108/eetsis.v10i1.2578
Xu Zhu, Zhao Zhang
INTRODUCTION: With the development of the epidemic, online teaching has gradually become a hot topic. However, unlike traditional teaching programs, there are many types of physical education resources, and the recommendation of related content has always been a difficulty in online teaching. OBJECTIVES: Therefore, this paper designs an accurate recommendation algorithm for online video teaching resources of sports to meet the personalized needs of online learning of sports majors. The data layer of the entire recommendation algorithm stores the video in the database and transmits it to the service processing layer after receiving the data.METHODS: This study was conducted using techniques from social network analysis. After receiving the data, the data layer of the recommendation algorithm stores the video in the database and transmits it to the business processing layer at the same time. The business processing layer uses the designed collaborative filtering resource recommendation algorithm to formulate recommendation results for different users, and push the recommended results to the user display interface of the user layer.RESULTS: The test results of the algorithm show that the designed system has a high recommendation success rate, and the system can still maintain stable running performance when the concurrent users are 500. The average precision of resource recommendation of this method is 98.21%, the average recall rate is 98.35%, and the average F1 value is 95.37%.CONCLUSION: The proposed resource recommendation algorithm realizes accurate recommendation of sports online video teaching resources through efficient recommendation algorithms.
导读:随着疫情的发展,网络教学逐渐成为热门话题。然而,与传统教学项目不同的是,体育资源种类繁多,相关内容的推荐一直是网络教学的难点。目的:为此,本文设计了一种体育在线视频教学资源的精准推荐算法,以满足体育专业在线学习的个性化需求。整个推荐算法的数据层将视频存储在数据库中,接收到数据后发送给业务处理层。方法:本研究采用社会网络分析技术进行。推荐算法的数据层接收到数据后,将视频存储在数据库中,同时传输给业务处理层。业务处理层使用设计的协同过滤资源推荐算法,针对不同用户制定推荐结果,并将推荐结果推送到用户层的用户显示界面。结果:算法的测试结果表明,所设计的系统具有较高的推荐成功率,当并发用户数为500时,系统仍能保持稳定的运行性能。该方法资源推荐的平均准确率为98.21%,平均召回率为98.35%,平均F1值为95.37%。结论:本文提出的资源推荐算法通过高效的推荐算法,实现了体育在线视频教学资源的精准推荐。
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引用次数: 1
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